docs: def format_comment(comment_data):
      """Formats the data returned by the linters.
  
      Given a dictionary with the fields: line, column, severity, message_id,
      message, will generate a message like:
  
      'line {line}, col {column}: {severity}: [{message_id}]: {message}'
  
      Any of the fields may nbe absent.
  
      Args:
        comment_data: dictionary with the linter data.
  
      Returns:
        a string with the formatted message.
      """
      format_pieces = []
      # Line and column information
      if 'line' in comment_data:
          format_pieces.append('line {line}')
      if 'column' in comment_data:
          if format_pieces:
              format_pieces.append(', ')
          format_pieces.append('col {column}')
      if format_pieces:
          format_pieces.append(': ')
  
      # Severity and Id information
      if 'severity' in comment_data:
          format_pieces.append('{severity}: ')
  
      if 'message_id' in comment_data:
          format_pieces.append('[{message_id}]: ')
  
      # The message
      if 'message' in comment_data:
          format_pieces.append('{message}')
  
      return ''.join(format_pieces).format(**comment_data)